孤立性蝶窦黏液囊肿是指原发于蝶窦并局限于蝶窦内的一种囊性疾病。其发病率较低,仅约占所有鼻附窦病变的2%[1]。我科最近收治1例孤立性蝶窦黏液囊肿患者,诊治过程值得总结,现结合文献做一分析。1病历摘要男,32岁。因突发双眼视物模糊并进行性视力下降,行MRI检查发现鞍区占位, Isolated sphenoidal mucinous cyst is a cystic disease originating in the sphenoid sinus and confined to the sphenoid sinus. Its incidence is low, accounting for only about 2% of all nasal sinuses [1]. Recently, our department admitted a solitary sphenoid sinus fluid in patients with mucosal cysts, the diagnosis and treatment process is worth summarizing, now combined with the literature to do an analysis. 1 medical record summary male, 32 years old. Due to sudden blurred vision and progressive visual acuity in both eyes, MRI examination revealed the saddle area,